TNT Sultan to DW Sultan??? Mystery of the missing links...

I had a L 2008 TNT sultan and just upgraded to an XL DW Sultan. I swapped all parts, same cassette, same derailiers front and rear, same cranks (and crank rings), and same chain.

I actually had just resized the chain on the TNT a weekend ago (two over lap from biggest ring front to biggest cog rear), I was expecting that the TNT with shorter stays would require me to add links back in or just use a shiny new chain on the longer stayed DW sultan. Needless to say it blew my mind when I sized from big to big on the DW and ended up having to pull an additional 4 links out of the system.

My buddies and I have been trying to sort this one out, anyone have any ideas?

I'm guessing it was a typo. No way is there only .4" of difference between the Spot & Sultan stay length from that year. Notice the Spot stays didn't change in length from TNT to DW...iirc, the Sultan's didn't either.

It was a typo, Center of BB to Center of rear axle is 18.2''. Still confused as to how I'm 4 links shorter, I have about 8 hours on the bike now with no issues. Oh well, one of the mysteries of life up there with Nessy of the Loch.